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| Description: A syllogism inference from two biconditionals. |
| Ref | Expression |
|---|---|
| syl6bbr.1 |
|
| syl6bbr.2 |
|
| Ref | Expression |
|---|---|
| syl6bbr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | syl6bbr.1 |
. 2
| |
| 2 | syl6bbr.2 |
. . 3
| |
| 3 | 2 | bicomi 172 |
. 2
|
| 4 | 1, 3 | syl6bb 535 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 3bitr4g 554 biorf 734 equsal 1150 necon3bid 1599 necon2abid 1620 eueq3 1916 sbc3ang 1976 sbcrext 1988 sbcrexgf 1990 sbcabel 1993 sbcel12g 2008 sbceqdig 2009 r19.3rzv 2345 r19.9rzv 2346 dfiun2g 2582 iununi 2612 otthg 2786 copsexg 2788 sotrieq 2857 reuuni1 2878 ordelpss 2971 ordsucun 3078 onsucuni2 3087 dfom2 3129 peano5 3149 asymref2 3436 xp11a 3473 xp11b 3474 fcnvres 3643 fnopabfv 3753 fnrnfv 3754 funimass4 3758 fvreseq 3794 funimass3 3801 dff3 3813 fconst4 3846 elunirnALT 3864 eqfnoprval 4011 ordgt0ge1 4137 oelim2 4215 oaabs 4245 pw2en 4435 mapenlem2 4479 mapxpen 4484 r1pw 4669 rankonid 4678 aceq5lem4 4721 brdom6disj 4788 cardalephex 4869 indpi 5017 ltmpq 5060 distrlem5pr 5114 prlem934b 5121 suplem2pr 5145 letri3t 5500 leltnet 5504 xrleltnet 5541 halfpost 5993 zrevaddclt 6127 elnnnn0 6129 znnsubt 6134 znn0subt 6135 primet 6152 dfuz 6160 qrevaddclt 6225 om2uzf1o 6251 icounlem 6358 eluz2t 6366 indstr 6406 lt2sq 6569 le2sq 6570 cau2 6865 clm4f 7035 clmnns 7037 clmfnn 7046 ser1f0 7123 znnen 7462 tgval3t 7585 opnssneib 7689 islp2 7707 cldlp 7710 cncnplem3 7736 cncnplem4 7737 sncld 7747 metne0 7783 iscauf 7901 iscau5 7903 iscaunns 7906 caun0 7907 metcld 7929 nmolb 8394 nmlno0lem 8413 phoeqi 8477 pilem3 8627 efif1lem1 8680 efif1lem2 8681 h2hcau 8804 h2hlm 8805 ocsh 9111 shle0t 9321 hoeq1t 9713 eigre 9717 nmoplbt 9788 nmfnlbt 9805 eleigvec2t 9839 nmlnop0ALT 9876 jplem2 10152 cvbr2t 10166 mdsl2b 10206 chrelat3t 10254 elghom 10340 r19.3rzvb 10395 iint 10550 algi 10576 rdmob 10597 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 147 df-an 225 |